The Mileage Stats application was developed by the Microsoft patterns & practices Web Guidance Team as part of Project Silk. (silk.codeplex.com)

The Mileage Stats application is a multi-page interactive web application where the pages are rendered without requiring a post back. This creates the illusion of a desktop application. The lack of post backs enable rich UI transitions between states (pages.) The browser application runs very fast because of the client-side data caching.